Subversion Repositories rxaui_interface_and_xaui_to_rxaui_interface_adapter

//-----------------------------------------------------------------------------

// Title         : Rxaui Tx Glue Logic

// Project       : SIP

//-----------------------------------------------------------------------------

// File          : sip_rxaui_tx_glue.v

// Author        : Lior Valency

// Created       : 19/02/2008 

// Last modified : 19/02/2008 

//-----------------------------------------------------------------------------

// Description : This module receive the data from rxaui fifo and from xpcs

// and muxed between them according to media interface.

//-----------------------------------------------------------------------------

// Copyright (c) 2007  Marvell International Ltd.

//

// THIS CODE CONTAINS CONFIDENTIAL INFORMATION OF MARVELL SEMICONDUCTOR, INC.

// NO RIGHTS ARE GRANTED HEREIN UNDER ANY PATENT, MASK WORK RIGHT OR COPYRIGHT

// OF MARVELL OR ANY THIRD PARTY. MARVELL RESERVES THE RIGHT AT ITS SOLE

// DISCRETION TO REQUEST THAT THIS CODE BE IMMEDIATELY RETURNED TO MARVELL.

// THIS CODE IS PROVIDED "AS IS". MARVELL MAKES NO WARRANTIES, EXPRESS,

// IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, COMPLETENESS OR PERFORMANCE.

//

//------------------------------------------------------------------------------

// Modification history :

// 12/12/2007  : created

//-----------------------------------------------------------------------------

`timescale 10ps / 10ps

module sip_rxaui_tx_glue (/*AUTOARG*/

   // Outputs

   fifo_type, rxaui_tx_data,

   // Inputs

   media_interface_mode, serdes_mode, fifo_rxaui_tx_data0,

   fifo_rxaui_tx_data1, txdata_serdes0

   );

`include "sip_rxaui_params.inc"

   ///////////////

   // INTERFACE //

   ///////////////

   // Configuration

   input                       media_interface_mode;

   input                       serdes_mode;

   // Fifo interface

   input [SERDES_DATA_W-1:0]   fifo_rxaui_tx_data0;

   input [SERDES_DATA_W-1:0]   fifo_rxaui_tx_data1;

   output                      fifo_type;

   // Serdes interface

   output [SERDES_DATA_W-1:0]  rxaui_tx_data;

   // XPCS interface

   input [SERDES_DATA_W-1:0]   txdata_serdes0;

   ////////////////////////////////

   // Internal Registers & Wires //

   ////////////////////////////////

   ///////////

   // Logic //

   ///////////

   // In case we are working in Rxaui or mode the input

   // data bus is 20bits and output data to serdes is 10bits (double frequency).

   // Fifo should read every line in 2cc.

   assign fifo_type = media_interface_mode | serdes_mode;

   // Bypass rxaui logic

   assign rxaui_tx_data = ((media_interface_mode == UNSET) || (serdes_mode == SET)) ? fifo_rxaui_tx_data0 :

                          {fifo_rxaui_tx_data1[SERDES_DATA_W/2-1:0],fifo_rxaui_tx_data0[SERDES_DATA_W/2-1:0]};

endmodule // sip_rxaui_tx_glue